Wheelock Series MTH-24 User manual

TheSeriesMTH-24Multi-ToneHornisaloud,weatherresistant,attentiongetting alert designed
for use in noisy or large locations where two different audible signals are required at one
locationfor easyidentification ofthe alertsignal.
Features
•Functions as a telephone extension alert using a pulsed warble tone activated by the
telephone systems interrupted or continuous dry contact closure
•Functions as an auxiliary alert using a steady tone which follows the contact closure of
a door service push-button, time clock, alarm systems, etc.
•When both alerting tones are activated, the steady tone will take priority over the warble
tone
•Built in 10-watt amplifier, electronic dual tone generator (steady or warble), timer for
the warble circuit, and volume control
•117 dBA @ 1 meter
•Includes RPS-2406, 24 VDC, 600 mA power supply
•Universal mounting bracket
•If an analog ring voltage (direct telephone line or PABX extension) is present, use the
CRT-T-40telephone relayto develop adry contactforcontrolling theSeries MTH-24
Multi-toneHorn
•Therecommended replacementof theSeries163 packageis asfollows:
•MTH-24
• CRT-T-40
Series MTH-24 Multitone Horn
MTH-24
Model
Number Order Code Nominal Operating Voltage Max. Operating Current @24 VDC Type DBA @ 1 Meter
MTH-24 3801 24 VDC 600mA Weatherproof for Indoor or Outdoor
Installation 117
Specifications & Ordering Information
72
Seepage4 for GeneralandTechnical Notes.